Check Point Advisories

VMware Multiple Products NAT Service Buffer Overflow (CVE-2005-4459)

Check Point Reference: CPAI-2006-169
Date Published: 14 Mar 2010
Severity: High
Last Updated: Wednesday 19 November, 2014
Source:
Industry Reference:CVE-2005-4459
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description VMware produces software which emulates PC hardware which is used for virtual computing, storage and networking systems. VMware products provide virtual machines which are containers that simulate working environments. The products are usually used to deliver hosting services as well as testing environments. A heap buffer overflow vulnerability exists in a number of VMware products. The flaw is triggered when the VMware NAT service processes certain malformed FTP commands. A remote attacker may leverage this vulnerability to inject and execute arbitrary code on the VMware host system. In a successful attack, arbitrary code is injected and executed on the vulnerable target host. The behavior of the target system is dependent on the intention of the malicious code. Note that any code executed by the attacker will run with the privileges of the VMware NAT service, which is System on Windows. In an attack where code execution is unsuccessfull, the VMware NAT service may terminate. All guest systems that are relying on the NAT service for networking may experience lost of network connection until the NAT service is restarted.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

  1. In the IPS tab, click Protections and find the VMware Multiple Products NAT Service Buffer Overflow protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  FTP Enforcement Violation.
Attack Information:  VMware multiple products NAT service buffer overflow

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